首页
登录
职称英语
The earliest vertical windmills were used in Persia more than 2,000 years a
The earliest vertical windmills were used in Persia more than 2,000 years a
游客
2023-11-11
48
管理
问题
The earliest vertical windmills were used in Persia more than 2,000 years ago for the grinding of grain. Windmills were adopted for pumping water in North America by the middle of the nineteenth century. Their use declined drastically in the 1930’s when inexpensive electricity reached the rural areas. A renewed interest in the use of wind power to generate electricity followed the energy crisis of the 1970’s. A program of the United States Department of Energy encouraged the development of new machines, the construction of wind farms, and an evaluation of the economic effect of a large scale Use of wind power.
Public acceptance of wind energy conversion systems is an important consideration in planning for the widespread application of wind energy. Studies have shown that the environmental impact of such systems is relatively small compared with conventional electric power systems. Wind-powered systems do not require the flooding of large land areas or the alteration of the natural ecology, as dohydroelectric systems. Furthermore; they produce no waste products or thermal or chemical effluents, as fossil-fueled and nuclear fueled systems do. [br] Which of the following most probably led to a decreased use of windmills in the U. S. ?
选项
A、The advent of nuclear energy.
B、Increased environmental awareness.
C、The availability of inexpensive electricity in rural areas.
D、A long-term shift in wind currents.
答案
C
解析
此题为细节题。答案在第一段中间。线索词为“decline”、“rural areas”。
转载请注明原文地址:http://tihaiku.com/zcyy/3177255.html
相关试题推荐
TheearliestverticalwindmillswereusedinPersiamorethan2,000yearsa
TheearliestverticalwindmillswereusedinPersiamorethan2,000yearsa
Peoplehavebeenpaintingpicturesforatleast30,000years.Theearliestp
Peoplehavebeenpaintingpicturesforatleast30,000years.Theearliestp
Peoplehavebeenpaintingpicturesforatleast30,000years.Theearliestp
Playisthe【C1】______businessofchildhood.Fromearliestinfancy,everychi
Playisthe【C1】______businessofchildhood.Fromearliestinfancy,everychi
Playisthe【C1】______businessofchildhood.Fromearliestinfancy,everychi
Playisthe【C1】______businessofchildhood.Fromearliestinfancy,everychi
Playisthe【C1】______businessofchildhood.Fromearliestinfancy,everychi
随机试题
Thenewonlineorderingsystemis______moreconvenientthantheoldpen-and-pa
Inacertainruralarea,peoplenormallydisposeofhouseholdgarbagebyburning
NewYearintheUnitedStatesiscelebratedonJanuary1,thefirstdayoft
在第二次世界大战期间,德国纳粹和日本军国主义者强行用战俘、妇女、儿童和犹太人做医
252kV及以上隔离开关和接地开关应在生产厂家内进行整台组装和出厂试验。需拆装发
统计信息社会共享,是指统计调查者对所收集到的统计资料,都要及时向社会公布。(
主归脾、胃、大肠经的药物是( ) A.沉香 B.檀香 C.枳实 D.佛
除特殊情形外,客户交易保证金不足,符合强行平仓条件后,应当自行平仓而未平仓造成的
当事人不服某区人民法院的一审判决,向某中级人民法院提起上诉,下列做法正确的有哪些
甲厂为增值税一般纳税人,2019年10月购进一批农产品,农产品收购发票注明
最新回复
(
0
)